ATON — PORTAGE BIOTECH INC
As of Q2 2026, 3 SEC-registered investment managers reported holding ATON (PORTAGE BIOTECH INC) in their latest 13F filings, with a combined reported value of $22.10K across 87.02K shares. That is +1337.7% by share count (+80.97K shares) versus the previous quarter, while reported value moved +1055.4%. Ownership is concentrated: the five largest holders account for 100.0% of reported value and the top ten for 100.0%.
Compared with the prior quarter, 1 opened new positions, 1 added to existing stakes, 2 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
Q2 2026 — 3 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Citadel Advisors history | 55.18K | $14.02K | 0.00% | New |
| UBS Group AG history | 31.43K | $7.98K | 0.00% | Add |
| BlackRock Inc history | 408 | $103 | 0.00% | Hold |
Q1 2026 — 4 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| UBS Group AG history | 5.54K | $1.75K | 0.00% | Add |
| BlackRock Inc history | 408 | $129 | 0.00% | Hold |
| Morgan Stanley history | 100 | $32 | 0.00% | Hold |
| Citigroup Inc history | 1 | $0 | — | New |
Q4 2025 — 3 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| BlackRock Inc history | 408 | $245 | 0.00% | Hold |
| UBS Group AG history | 167 | $100 | 0.00% | Reduce |
| Morgan Stanley history | 100 | $60 | 0.00% | Reduce |
Q3 2025 — 4 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Morgan Stanley history | 19.22K | $103.59K | 0.00% | Add |
| BlackRock Inc history | 408 | $2.20K | 0.00% | Hold |
| UBS Group AG history | 214 | $1.15K | 0.00% | Reduce |
| Citigroup Inc history | 1 | $5 | 0.00% | New |
Q2 2025 — 4 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| BlackRock Inc history | 408 | $2.25K | 0.00% | Hold |
| UBS Group AG history | 269 | $1.49K | 0.00% | Reduce |
| Morgan Stanley history | 100 | $552 | 0.00% | Reduce |
| Wells Fargo & Co history | 35 | $193 | 0.00% | Hold |
Q1 2025 — 5 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| UBS Group AG history | 10.21K | $94.47K | 0.00% | Add |
| Citigroup Inc history | 504 | $4.66K | 0.00% | New |
| BlackRock Inc history | 408 | $3.77K | 0.00% | Hold |
| Morgan Stanley history | 138 | $1.28K | 0.00% | Reduce |
| Wells Fargo & Co history | 35 | $324 | 0.00% | Hold |
New Positions (Q2 2026)
- Citadel Advisors 55.18K sh · $14.02K
Fully Exited (vs previous quarter)
- Morgan Stanley sold 100 sh · $32
- Citigroup Inc sold 1 sh · $0
Fund Position History — shares by quarter (top 8 funds)
| Fund | Q2 2026 | Q1 2026 | Q4 2025 | Q3 2025 | Q2 2025 | Q1 2025 | Q4 2024 | Q3 2024 |
|---|---|---|---|---|---|---|---|---|
| Citadel Advisors | 55.18K | — | — | — | — | — | 15.43K | — |
| UBS Group AG | 31.43K | 5.54K | 167 | 214 | 269 | 10.21K | 3.60K | 2.47K |
| BlackRock Inc | 408 | 408 | 408 | 408 | 408 | 408 | 408 | 408 |
| Morgan Stanley | — | 100 | 100 | 19.22K | 100 | 138 | 2.61K | 125 |
| Citigroup Inc | — | 1 | — | 1 | — | 504 | — | — |
| JPMorgan Chase & Co | — | — | — | — | — | — | 2.66K | — |
| Renaissance Technologies | — | — | — | — | — | — | — | 10.06K |
| Wells Fargo & Co | — | — | — | — | 35 | 35 | 35 | 35 |